ChoiceQuestion::getDefaultValidator() - Code Metrics - Inspection of "Merge pull request #55 from gulien/master" - theaentmachine/aent-console - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 791219...e1c78c )

by Julien

created 2018-07-25 08:50 UTC

ChoiceQuestion::getDefaultValidator() D

↳ Parent: ChoiceQuestion

Complexity

Conditions	19
Paths	1

Size

Total Lines	72
Code Lines	44

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	19
eloc	44
nc	1
nop	0
dl	0
loc	72
rs	4.5166
c	0
b	0
f	0

How to fix Long Method Complexity

<?php

namespace TheAentMachine\Helper;

use Symfony\Component\Console\Exception\InvalidArgumentException;
use Symfony\Component\Console\Helper\QuestionHelper;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Question\ChoiceQuestion as SymfonyChoiceQuestion;

/**
 * A helper class to easily create choice questions.
 */
class ChoiceQuestion extends BaseQuestion
{
    /** @var string[] */
    private $choices;

    /** @var bool */
    private $multiselect = false;


    public function __construct(QuestionHelper $helper, InputInterface $input, OutputInterface $output, string $question, array $choices, bool $printAnswer = true)
    {
        parent::__construct($helper, $input, $output, $question, $printAnswer);
        $this->choices = $choices;
    }

    public function setDefault(string $default): self
    {
        $this->default = $default;
        return $this;
    }

    public function setHelpText(string $helpText): self
    {
        $this->helpText = $helpText;
        return $this;
    }

    public function ask(): string
    {
        $question = $this->initQuestion(false);
        do {
            $answer = $this->helper->ask($this->input, $this->output, $question);
        } while ($this->helpText !== null && $answer === '?');

        return $answer;

    }

    /** @return string[] */
    public function askWithMultipleChoices(): array
    {
        $question = $this->initQuestion(true);

        do {
            $answer = $this->helper->ask($this->input, $this->output, $question);
        } while ($this->helpText !== null && $answer === '?');

        return $answer;

    }

    private function initQuestion(bool $multiselect): SymfonyChoiceQuestion
    {
        $text = $this->question;
        if ($this->helpText) {
            $text .= ' (? for help)';
        }
        if ($this->default) {
            $defaultText = (\is_array($this->default) ? implode(', ', $this->default) : $this->default);

            $text .= ' [' . $defaultText . ']';
        }
        $text .= ': ';
        $this->question = $text;

        $question = new SymfonyChoiceQuestion($this->question, $this->choices, $this->default);
        $this->multiselect = $multiselect;
        $question->setMultiselect($this->multiselect);
        $question->setValidator($this->getDefaultValidator());
        return $question;
    }

    /** Greatly inspired from the default Symfony's ChoiceQuestion validator*/
    private function getDefaultValidator(): callable
    {
        $choices = $this->choices;
        $errorMessage = 'Value "%s" is invalid';
        $multiselect = $this->multiselect;
        $isAssoc = (bool)count(array_filter(array_keys($this->choices), '\is_string'));

        return function ($selected) use ($choices, $errorMessage, $multiselect, $isAssoc) {

            // Collapse all spaces.
            $selectedChoices = str_replace(' ', '', $selected);

            if ($this->helpText !== null && $selectedChoices === '?') {
                $this->output->writeln($this->helpText ?: '');
                return '?';
            }

            if ($multiselect) {
                // Check for a separated comma values
                if (!preg_match('/^[^,]+(?:,[^,]+)*$/', $selectedChoices, $matches)) {
                    throw new InvalidArgumentException(sprintf($errorMessage, $selected));
                }
                $selectedChoices = explode(',', $selectedChoices);
            } else {
                $selectedChoices = array($selected);
            }

            $multiselectChoices = array();
            foreach ($selectedChoices as $value) {
                $results = array();
                foreach ($choices as $key => $choice) {
                    if ($choice === $value) {
                        $results[] = $key;
                    }
                }

                if (count($results) > 1) {
                    throw new InvalidArgumentException(sprintf('The provided answer is ambiguous. Value should be one of %s.', implode(' or ', $results)));
                }

                $result = array_search($value, $choices, true);

                if (!$isAssoc) {
                    if (false !== $result) {
                        $result = $choices[$result];
                    } elseif (isset($choices[$value])) {
                        $result = $choices[$value];
                    }
                } elseif (false === $result && isset($choices[$value])) {
                    $result = $value;
                }

                if (false === $result) {
                    throw new InvalidArgumentException(sprintf($errorMessage, $value));
                }
                $multiselectChoices[] = (string)$result;
            }
            if ($multiselect) {
                if ($this->printAnswer) {
                    $this->output->writeln('<info>You selected: ' . \implode(", ", $multiselectChoices) . '</info>');
                    $this->spacer();
                }
                return $multiselectChoices;
            }

            $answer = current($multiselectChoices);
            if ($this->printAnswer) {
                $this->output->writeln("<info>You selected: $answer</info>");
                $this->spacer();
            }

            return $answer;
        };
    }
}


1			<?php
2
3			namespace TheAentMachine\Helper;
4
5			use Symfony\Component\Console\Exception\InvalidArgumentException;
6			use Symfony\Component\Console\Helper\QuestionHelper;
7			use Symfony\Component\Console\Input\InputInterface;
8			use Symfony\Component\Console\Output\OutputInterface;
9			use Symfony\Component\Console\Question\ChoiceQuestion as SymfonyChoiceQuestion;
10
11			/**
12			* A helper class to easily create choice questions.
13			*/
14			class ChoiceQuestion extends BaseQuestion
15			{
16			/** @var string[] */
17			private $choices;
18
19			/** @var bool */
20			private $multiselect = false;
21
22
23			public function __construct(QuestionHelper $helper, InputInterface $input, OutputInterface $output, string $question, array $choices, bool $printAnswer = true)
24			{
25			parent::__construct($helper, $input, $output, $question, $printAnswer);
26			$this->choices = $choices;
27			}
28
29			public function setDefault(string $default): self
30			{
31			$this->default = $default;
32			return $this;
33			}
34
35			public function setHelpText(string $helpText): self
36			{
37			$this->helpText = $helpText;
38			return $this;
39			}
40
41			public function ask(): string
42			{
43			$question = $this->initQuestion(false);
44			do {
45			$answer = $this->helper->ask($this->input, $this->output, $question);
46			} while ($this->helpText !== null && $answer === '?');
47
48			return $answer;
			0 ignored issues – show Bug Best Practice introduced 2018-07-20 13:05 UTC by Report Bug Copy Issue Report The expression `return $answer` could return the type `null\|boolean` which is incompatible with the type-hinted return `string`. Consider adding an additional type-check to rule them out. Loading history...
49			}
50
51			/** @return string[] */
52			public function askWithMultipleChoices(): array
53			{
54			$question = $this->initQuestion(true);
55
56			do {
57			$answer = $this->helper->ask($this->input, $this->output, $question);
58			} while ($this->helpText !== null && $answer === '?');
59
60			return $answer;
			0 ignored issues – show Bug Best Practice introduced 2018-07-20 13:05 UTC by Report Bug Copy Issue Report The expression `return $answer` could return the type `null\|string\|boolean` which is incompatible with the type-hinted return `array`. Consider adding an additional type-check to rule them out. Loading history...
61			}
62
63			private function initQuestion(bool $multiselect): SymfonyChoiceQuestion
64			{
65			$text = $this->question;
66			if ($this->helpText) {
67			$text .= ' (? for help)';
68			}
69			if ($this->default) {
70			$defaultText = (\is_array($this->default) ? implode(', ', $this->default) : $this->default);
			0 ignored issues – show introduced 2018-07-20 13:05 UTC by Report Bug Copy Issue Report The condition `is_array($this->default)` is always `false`. Loading history...
71			$text .= ' [' . $defaultText . ']';
72			}
73			$text .= ': ';
74			$this->question = $text;
75
76			$question = new SymfonyChoiceQuestion($this->question, $this->choices, $this->default);
77			$this->multiselect = $multiselect;
78			$question->setMultiselect($this->multiselect);
79			$question->setValidator($this->getDefaultValidator());
80			return $question;
81			}
82
83			/** Greatly inspired from the default Symfony's ChoiceQuestion validator*/
84			private function getDefaultValidator(): callable
85			{
86			$choices = $this->choices;
87			$errorMessage = 'Value "%s" is invalid';
88			$multiselect = $this->multiselect;
89			$isAssoc = (bool)count(array_filter(array_keys($this->choices), '\is_string'));
90
91			return function ($selected) use ($choices, $errorMessage, $multiselect, $isAssoc) {
92
93			// Collapse all spaces.
94			$selectedChoices = str_replace(' ', '', $selected);
95
96			if ($this->helpText !== null && $selectedChoices === '?') {
97			$this->output->writeln($this->helpText ?: '');
98			return '?';
99			}
100
101			if ($multiselect) {
102			// Check for a separated comma values
103			if (!preg_match('/^[^,]+(?:,[^,]+)*$/', $selectedChoices, $matches)) {
104			throw new InvalidArgumentException(sprintf($errorMessage, $selected));
105			}
106			$selectedChoices = explode(',', $selectedChoices);
107			} else {
108			$selectedChoices = array($selected);
109			}
110
111			$multiselectChoices = array();
112			foreach ($selectedChoices as $value) {
113			$results = array();
114			foreach ($choices as $key => $choice) {
115			if ($choice === $value) {
116			$results[] = $key;
117			}
118			}
119
120			if (count($results) > 1) {
121			throw new InvalidArgumentException(sprintf('The provided answer is ambiguous. Value should be one of %s.', implode(' or ', $results)));
122			}
123
124			$result = array_search($value, $choices, true);
125
126			if (!$isAssoc) {
127			if (false !== $result) {
128			$result = $choices[$result];
129			} elseif (isset($choices[$value])) {
130			$result = $choices[$value];
131			}
132			} elseif (false === $result && isset($choices[$value])) {
133			$result = $value;
134			}
135
136			if (false === $result) {
137			throw new InvalidArgumentException(sprintf($errorMessage, $value));
138			}
139			$multiselectChoices[] = (string)$result;
140			}
141			if ($multiselect) {
142			if ($this->printAnswer) {
143			$this->output->writeln('<info>You selected: ' . \implode(", ", $multiselectChoices) . '</info>');
144			$this->spacer();
145			}
146			return $multiselectChoices;
147			}
148
149			$answer = current($multiselectChoices);
150			if ($this->printAnswer) {
151			$this->output->writeln("<info>You selected: $answer</info>");
152			$this->spacer();
153			}
154
155			return $answer;
156			};
157			}
158			}
159

theaentmachine / aent-console

Push — master ( 791219...e1c78c )

ChoiceQuestion::getDefaultValidator() D

Complexity

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Duplication

Importance

How to fix Long Method Complexity

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